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{{Short description|None}}File:Quark structure proton.svg|thumb|A
proton, the only
baryon stable in isolation, has two up
quarks and one down quark, confined via the exchange of
gluongluonBaryons are
composite particles made of three
quarks, as opposed to
mesons, which are composite particles made of one quark and one antiquark. Baryons and mesons are both
hadrons, which are particles composed solely of quarks or both quarks and antiquarks. The term
baryon is derived from the
Greek "βαÏÏÏ" (
barys), meaning "heavy", because, at the time of their naming, it was believed that baryons were characterized by having greater masses than other particles that were classed as matter.Until a few years ago, it was believed that some experiments showed the existence of
pentaquarks â baryons made of four quarks and one antiquark.H. Muir (2003)K. Carter (2003) Prior to 2006 the
particle physics community as a whole did not view the existence of pentaquarks as likely.W.-M. Yao
et al. (2006):
Particle listings â Positive Theta On 13 July 2015, the
LHCb collaboration at
CERN reported results consistent with pentaquark states in the decay of
bottom lambda baryons (Î{{su|p=0|b=b}}).R. Aaij
et al. (2015)Since baryons are composed of quarks, they participate in the
strong interaction.
Leptons, on the other hand, are not composed of quarks and as such do not participate in the strong interaction. The best known baryons are
protons and
neutrons, which make up most of the mass of the visible
matter in the
universe, whereas
electrons, the other major component of
atoms, are leptons. Each baryon has a corresponding
antiparticle, known as an antibaryon, in which quarks are replaced by their corresponding antiquarks. For example, a proton is made of two up quarks and one down quark, while its corresponding antiparticle, the
antiproton, is made of two up antiquarks and one down antiquark.
Baryon properties
These lists detail all known and predicted baryons in total angular momentum
J = {{sfrac|1|2}} and
J = {{sfrac|3|2}} configurations with positive
parity.{{citation| author=Griffiths, David J.|title=Introduction to Elementary Particles|edition=2nd revised| publisher=WILEY-VCH |year=2008|isbn= 978-3-527-40601-2|pages=181â188}}
- Baryons composed of one type of quark (uuu, ddd, ...) can exist in J = {{sfrac|3|2}} configuration, but J = {{sfrac|1|2}} is forbidden by the Pauli exclusion principle.
- Baryons composed of two types of quarks (uud, uus, ...) can exist in both J = {{sfrac|1|2}} and J = {{sfrac|3|2}} configurations.
- Baryons composed of three types of quarks (uds, udc, ...) can exist in both J = {{sfrac|1|2}} and J = {{sfrac|3|2}} configurations. Two J = {{sfrac|1|2}} configurations are possible for these baryons.
The symbols encountered in these lists are:
I (
isospin),
J (
total angular momentum),
P (
parity), u (
up quark), d (
down quark), s (
strange quark), c (
charm quark), b (
bottom quark),
Q (
charge),
B (
baryon number),
S (
strangeness),
C (
charm), {{prime|
B}} (
bottomness), as well as a wide array of subatomic particles (hover for name). (See
Baryon for a detailed explanation of these symbols.)Antibaryons are not listed in the tables; however, they simply would have all quarks changed to antiquarks, and
Q,
B,
S,
C, {{prime|
B}}, would be of opposite signs. Particles with â next to their names have been predicted by the
Standard Model but not yet observed. Values in parentheses have not been firmly established by experiments, but are predicted by the
quark model and are consistent with the measurements.P.A Zyla
et al. (2020):
Particle summary tables â BaryonsJ.G. Körner
et al. (1994)
J'P {{sfrac>1|2}}+ baryons"> J'P {{sfrac|1|2}}+ baryons {| class"wikitable sortable" style"text-align: center; margin-right:0;"J'P {{sfrac>1|2}}+ baryons
|
|
|
! class=unsortable|Particle name
! Symbol
! Quark content
! Rest mass (
MeV/
c2)
! width="40"|
I ! width="40"|
JP ! width="50"|
Q (
e)
! width="40"|
S ! width="40"|
C ! width="40"|
Bâ² !
Mean lifetime (
s)
! class=unsortable|Commonlydecays to
|
style="height:40px"
|
style="height:40px"
|align="left"|
neutronP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Neutron0}} | {{#invoke:particles|link|Neutron}}, {{#invoke:particles|link|Neutron0}}, {{#invoke:particles|link|Nucleon0}}
| {{#invoke:particles|link|Up quark|Down quark|Down quark}}
| }}{{ref|massofnucleons|[a]}}
| }}
| }}+
| 0
| 0
| 0
| 0
| }}{{ref|neutronlifetime|[c]}}
| {{#invoke:particles|link|Proton+|+|Electron|+|Electron antineutrino}}
|
style="height:40px"
|align="left"|
lambdaP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Lambda}} | {{#invoke:particles|link|Lambda0}}
| {{#invoke:particles|link|Up quark|Down quark|Strange quark}}
| {{val|1115.683|0.006}}
| 0
| }}+
| 0
| | 0
| 0
| }}
| {{#invoke:particles|link|Proton+|+|Pion-|or|br|Neutron0|+|Pion0}}
|
style="height:40px"
|
style="height:40px"
|
style="height:40px"
|align="left"|
sigmaP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Sigma+}} | {{#invoke:particles|link|Sigma+}}
| {{#invoke:particles|link|Up quark|Up quark|Strange quark}}
| {{val|1189.37|0.07}}
| 1
| }}+
| | | 0
| 0
| }}
| {{#invoke:particles|link|Proton+|+|Pion0|or|br|Neutron0|+|Pion+}}
|
style="height:40px"
|align="left"| sigmaP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Sigma0}} | {{#invoke:particles|link|Sigma0}}
| {{#invoke:particles|link|Up quark|Down quark|Strange quark}}
| {{val|1192.642|0.024}}
| 1
| }}+
| 0
| | 0
| 0
| }}
| {{#invoke:particles|link|Lambda0|+|Photon}}
|
style="height:40px"
|align="left"| sigmaP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Sigma-}} | {{#invoke:particles|link|Sigma-}}
| {{#invoke:particles|link|Down quark|Down quark|Strange quark}}
| {{val|1197.449|0.030}}
| 1
| }}+
| | | 0
| 0
| }}
| {{#invoke:particles|link|Neutron0|+|Pion-}}
|
style="height:40px"
|align="left"| charmed sigmaP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Charmed Sigma}}(2455) | {{#invoke:particles|link|Charmed sigma++}}(2455)
| {{#invoke:particles|link|Up quark|Up quark|Charm quark}}
| {{val|2453.97|0.14}}
| 1
| }}+
| | 0
| | 0
| }}{{ref|Lifetime|[d]}}
| {{#invoke:particles|link|Charmed lambda+|+|Pion+}}
|
style="height:40px"
|align="left"| charmed sigma
| {{#invoke:particles|link|Charmed sigma+}}(2455)
| {{#invoke:particles|link|Up quark|Down quark|Charm quark}}
| {{val|2452.9|0.4}}
| 1
| }}+
| | 0
| | 0
| }}{{ref|Lifetime|[d]}}
| {{#invoke:particles|link|Charmed lambda+|+|Pion0}}
|
style="height:40px"
|align="left"| charmed sigma
| {{#invoke:particles|link|Charmed sigma0}}(2455)
| {{#invoke:particles|link|Down quark|Down quark|Charm quark}}
| {{val|2453.75|0.14}}
| 1
| }}+
| 0
| 0
| | 0
| }}{{ref|Lifetime|[d]}}
| {{#invoke:particles|link|Charmed lambda+|+|Pion-}}
|
style="height:40px"
|align="left"| bottom sigmaP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Bottom Sigma}} | {{#invoke:particles|link|Bottom Sigma+}}
| {{#invoke:particles|link|Up quark|Up quark|Bottom quark}}
| {{val|5810.56|0.25}}
| (1)
| {{nowrap|(}}+)}}
| | 0
| 0
| | }}{{ref|Lifetime|[d]}}
| {{#invoke:particles|link|Bottom Lambda0|+|Pion+}}
|
style="height:40px"
|align="left"| bottom sigma{{ref|Undiscovered|â }}
| {{#invoke:particles|link|Bottom Sigma0}}
| {{#invoke:particles|link|Up quark|Down quark|Bottom quark}}
| unknown
| (1)
| (}}+)
| 0
| 0
| 0
| | unknown
| unknown
|
style="height:40px"
|align="left"| bottom sigma
| {{#invoke:particles|link|Bottom Sigma-}}
| {{#invoke:particles|link|Down quark|Down quark|Bottom quark}}
| {{val|5815.64|0.27}}
| (1)
| {{nowrap|(}}+)}}
| | 0
| 0
| | }}{{ref|Lifetime|[d]}}
| {{#invoke:particles|link|Bottom Lambda0|+|Pion-}}
|
style="height:40px"
|align="left"|
xiP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Xi0}} | {{#invoke:particles|link|Xi0}}
| {{#invoke:particles|link|Up quark|Strange quark|Strange quark}}
| {{val|1314.86|0.20}}
| }}
| }}(+)
| 0
| | 0
| 0
| }}
| {{#invoke:particles|link|Lambda0|+|Pion0}}
|
style="height:40px"
|align="left"| xiP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Xi-}} | {{#invoke:particles|link|Xi-}}
| {{#invoke:particles|link|Down quark|Strange quark|Strange quark}}
| {{val|1321.71|0.07}}
| }}
| }}(+)
| | | 0
| 0
| }}
| {{#invoke:particles|link|Lambda0|+|Pion-}}
|
style="height:40px"
|
style="height:40px"
|
style="height:40px"
|align="left"| charmed xi primeP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Charmed Xi'+}} | {{#invoke:particles|link|Charmed Xi'+}}
| {{#invoke:particles|link|Up quark|Strange quark|Charm quark}}
| {{val|2578.4|0.5}}
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| | | | 0
| unknown
| {{#invoke:particles|link|Charmed Xi+|+|Gamma|seen}}
|
style="height:40px"
|align="left"| charmed xi primeP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Charmed Xi'0}} | {{#invoke:particles|link|Charmed Xi'0}}
| {{#invoke:particles|link|Down quark|Strange quark|Charm quark}}
| {{val|2579.2|0.5}}
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| 0
| | | 0
| unknown
| {{#invoke:particles|link|Charmed Xi0|+|Gamma|seen}}
|
style="height:40px"
|
style="height:40px"
|align="left"| double charmed xi{{ref|charmedXi0data|[e]}}
| {{#invoke:particles|link|Double charmed Xi+}}
| {{#invoke:particles|link|Down quark|Charm quark|Charm quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| | 0
| | 0
| unknown
| unknown
|
style="height:40px"
|
style="height:40px"
|align="left"| bottom xior cascade B
| {{#invoke:particles|link|Bottom Xi-}}
| {{#invoke:particles|link|Down quark|Strange quark|Bottom quark}}
| {{val|5797.0|0.6}}
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| | | 0
| | }}
| see
{{#invoke:particles|nolink|Bottom Xi-}} decay modes
|
style="height:40px"
|align="left"| bottom xi primeâ
| {{#invoke:particles|link|Bottom Xi'0}}
| {{#invoke:particles|link|Up quark|Strange quark|Bottom quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| 0
| | 0
| | unknown
| unknown
|
style="height:40px"
|align="left"| bottom xi primeâ
| {{#invoke:particles|link|Bottom Xi'-}}
| {{#invoke:particles|link|Down quark|Strange quark|Bottom quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| | | 0
| | unknown
| unknown
|
style="height:40px"
|align="left"| double bottom xiâ
| {{#invoke:particles|link|Double Bottom Xi0}}
| {{#invoke:particles|link|Up quark|Bottom quark|Bottom quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| 0
| 0
| 0
| | unknown
| unknown
|
style="height:40px"
|align="left"| double bottom xiâ
| {{#invoke:particles|link|Double Bottom Xi-}}
| {{#invoke:particles|link|Down quark|Bottom quark|Bottom quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| | 0
| 0
| | unknown
| unknown
|
style="height:40px"
|align="left"| charmed bottom xiâ
| {{#invoke:particles|link|Charmed Bottom Xi+}}
| {{#invoke:particles|link|Up quark|Charm quark|Bottom quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| | 0
| | | unknown
| unknown
|
style="height:40px"
|align="left"| charmed bottom xiâ
| {{#invoke:particles|link|Charmed Bottom Xi0}}
| {{#invoke:particles|link|Down quark|Charm quark|Bottom quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| 0
| 0
| | | unknown
| unknown
|
style="height:40px"
|align="left"| charmed bottom xi primeâ
| {{#invoke:particles|link|Charmed Bottom Xi'+}}
| {{#invoke:particles|link|Up quark|Charm quark|Bottom quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| | 0
| | | unknown
| unknown
|
style="height:40px"
|align="left"| charmed bottom xi primeâ
| {{#invoke:particles|link|Charmed bottom Xi'0}}
| {{#invoke:particles|link|Down quark|Charm quark|Bottom quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| 0
| 0
| | | unknown
| unknown
|
style="height:40px"
|
style="height:40px"
|align="left"| bottom omegaP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Bottom omega-}} | {{#invoke:particles|link|Bottom Omega-}}
| {{#invoke:particles|link|Strange quark|Strange quark|Bottom quark}}
| {{val|6046.1|1.7}}
| (0)
| {{nowrap|(}}+)}}
| | | 0
| | }}
| {{#invoke:particles|link|Omega-|+|J/Psi|seen}}
|
style="height:40px"
|align="left"| double charmed omegaâ
| {{#invoke:particles|link|Double charmed Omega+}}
| {{#invoke:particles|link|Strange quark|Charm quark|Charm quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| | | | 0
| unknown
| unknown
|
style="height:40px"
|align="left"| charmed bottom omegaâ
| {{#invoke:particles|link|Charmed bottom omega0}}
| {{#invoke:particles|link|Strange quark|Charm quark|Bottom quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| 0
| | | | unknown
| unknown
|
style="height:40px"
|align="left"| charmed bottom omega primeâ
| {{#invoke:particles|link|Charmed bottom omega'0}}
| {{#invoke:particles|link|Strange quark|Charm quark|Bottom quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| 0
| | | | unknown
| unknown
|
style="height:40px"
|align="left"| double bottom omegaâ
| {{#invoke:particles|link|Double Bottom Omega-}}
| {{#invoke:particles|link|Strange quark|Bottom quark|Bottom quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| | | 0
| | unknown
| unknown
|
style="height:40px"
|align="left"| double charmed bottom omegaâ
| {{#invoke:particles|link|Double charmed bottom Omega+}}
| {{#invoke:particles|link|Charm quark|Charm quark|Bottom quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| | 0
| | | unknown
| unknown
|
style="height:40px"
|align="left"| charmed double bottom omegaâ
| {{#invoke:particles|link|Charmed double bottom Omega0}}
| {{#invoke:particles|link|Charm quark|Bottom quark|Bottom quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| 0
| 0
| | | unknown
| unknown
â {{note|Undiscovered}} Particle has not yet been observed.[a] {{note|massofnucleons}} The masses of the proton and neutron are known with much better precision in daltons (Da) than in MeV/c2. In atomic mass units, the mass of the proton is {{physconst|mp_Da}} whereas that of the neutron is {{physconst|mn_Da|after=.}}[b] {{note|protonlifetime}} At least 1035 years. See proton decay.[c] {{note|neutronlifetime}} For free neutrons; in most common nuclei, neutrons are stable.[d] {{note|Lifetime}} PDG reports the resonance width (Î). Here the conversion Ï = {{sfrac|ħ|Î}} is given instead.[e] {{note|charmedXi0data}} There is a controversial discovery claim, disfavored by other experimental data.J. Beringer et al. (2012): Particle listings â {{#invoke:particles|nolink|Double Charmed Xi+}}J'P {{sfrac>3|2}}+ baryons"> J'P {{sfrac|3|2}}+ baryons {| class"wikitable sortable" style"text-align: center; margin-right:0;"J'P {{sfrac>3|2}}+ baryons
|
! class=unsortable|Particle name
! Symbol
! Quarkcontent
!
Rest mass (
MeV/
c2)
! width="40"|
I ! width="40"|
JP ! width="50"|
Q (
e)
! width="40"|
S ! width="40"|
C ! width="40"|
Bâ² !
Mean lifetime (
s)
! class=unsortable|Commonlydecays to
|
style="height:40px"
|
style="height:40px"
|align="left"| delta
| {{#invoke:particles|link|Delta+}}(1232)
| {{#invoke:particles|link|Up quark|Up quark|Down quark}}
| {{val|1232|2}}
| }}
| {{nowrap|}}+}}
| | 0
| 0
| 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Pion+|+|Neutron0|or|br|Pion0|+|Proton+}}
|
style="height:40px"
|align="left"| delta
| {{#invoke:particles|link|Delta0}}(1232)
| {{#invoke:particles|link|Up quark|Down quark|Down quark}}
| {{val|1232|2}}
| }}
| {{nowrap|}}+}}
| 0
| 0
| 0
| 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Pion0|+|Neutron0|or|br|Pion-|+|Proton+}}
|
style="height:40px"
|align="left"| delta
| {{#invoke:particles|link|Delta-}}(1232)
| {{#invoke:particles|link|Down quark|Down quark|Down quark}}
| {{val|1232|2}}
| }}
| {{nowrap|}}+}}
| | 0
| 0
| 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Pion-|+|Neutron0}}
|
style="height:40px"
|align="left"|
sigmaP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Sigma}}(1385) | {{#invoke:particles|link|Sigma*+}}(1385)
| {{#invoke:particles|link|Up quark|Up quark|Strange quark}}
| {{val|1382.80|0.35}}
| 1
| {{nowrap|}}+}}
| | | 0
| 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Lambda0|+|Pion+|or|br|Sigma+|+|Pion0|or|br|Sigma0|+|Pion+}}
|
style="height:40px"
|align="left"| sigma
| {{#invoke:particles|link|Sigma*0}}(1385)
| {{#invoke:particles|link|Up quark|Down quark|Strange quark}}
| {{val|1383.7|1.0}}
| 1
| {{nowrap|}}+}}
| 0
| | 0
| 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Lambda0|+|Pion0|or|br|Sigma+|+|Pion-|or|br|Sigma0|+|Pion0}}
|
style="height:40px"
|align="left"| sigma
| {{#invoke:particles|link|Sigma*-}}(1385)
| {{#invoke:particles|link|Down quark|Down quark|Strange quark}}
| {{val|1387.2|0.5}}
| 1
| {{nowrap|}}+}}
| | | 0
| 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Lambda0|+|Pion-|or|br|Sigma0|+|Pion-|or|br|Sigma-|+|Pion0}}
|
style="height:40px"
|align="left"| charmed sigmaP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Charmed Sigma}}(2520) | {{#invoke:particles|link|Charmed sigma*++}}(2520)
| {{#invoke:particles|link|Up quark|Up quark|Charm quark}}
| {{val|2518.41|+0.21|-0.19}}
| 1
| {{nowrap|(}}+)}}
| | 0
| | 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Charmed Lambda+|+|Pion+}}
|
style="height:40px"
|align="left"| charmed sigma
| {{#invoke:particles|link|Charmed sigma*+}}(2520)
| {{#invoke:particles|link|Up quark|Down quark|Charm quark}}
| {{val|2517.5|2.3}}
| 1
| {{nowrap|(}}+)}}
| | 0
| | 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Charmed Lambda+|+|Pion0}}
|
style="height:40px"
|align="left"| charmed sigma
| {{#invoke:particles|link|Charmed sigma*0}}(2520)
| {{#invoke:particles|link|Down quark|Down quark|Charm quark}}
| {{val|2518.48|0.20}}
| 1
| {{nowrap|(}}+)}}
| 0
| 0
| | 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Charmed Lambda+|+|Pion-}}
|
style="height:40px"
|align="left"| bottom sigmaP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Bottom Sigma*}} | {{#invoke:particles|link|Bottom Sigma*+}}
| {{#invoke:particles|link|Up quark|Up quark|Bottom quark}}
| {{nowrap|{{val|5830.32|0.27}}}}
| (1)
| {{nowrap|(}}+)}}
| | 0
| 0
| | }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Bottom Lambda0|+|Pion+}}
|
style="height:40px"
|align="left"| bottom sigma{{ref|Undiscovered2|[e]}}
| {{#invoke:particles|link|Bottom Sigma*0}}
| {{#invoke:particles|link|Up quark|Down quark|Bottom quark}}
| unknown
| (1)
| {{nowrap|(}}+)}}
| 0
| 0
| 0
| | unknown
| unknown
|
style="height:40px"
|align="left"| bottom sigma
| {{#invoke:particles|link|Bottom Sigma*-}}
| {{#invoke:particles|link|Down quark|Down quark|Bottom quark}}
| {{nowrap|{{val|5834.74|0.30}}}}
| (1)
| {{nowrap|(}}+)}}
| | 0
| 0
| | }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Bottom Lambda0|+|Pion-}}
|
style="height:40px"
|align="left"|
xiP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Xi}}(1530) | {{#invoke:particles|link|Xi*0}}(1530)
| {{#invoke:particles|link|Up quark|Strange quark|Strange quark}}
| {{val|1531.80|0.32}}
| }}
| {{nowrap|}}+}}
| 0
| | 0
| 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Xi0|+|Pion0|or|br|Xi-|+|Pion+}}
|
style="height:40px"
|align="left"| xi
| {{#invoke:particles|link|Xi*-}}(1530)
| {{#invoke:particles|link|Down quark|Strange quark|Strange quark}}
| {{val|1535.0|0.6}}
| }}
| {{nowrap|}}+}}
| | | 0
| 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Xi0|+|Pion-|or|br|Xi-|+|Pion0}}
|
style="height:40px"
|align="left"| charmed xiP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Charmed Xi}}(2645) | {{#invoke:particles|link|Charmed Xi*+}}(2645)
| {{#invoke:particles|link|Up quark|Strange quark|Charm quark}}
| {{val|2645.56|+0.24|-0.30}}
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| | | | 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Charmed Xi+|+|Pion0|seen}}
|
style="height:40px"
|align="left"| charmed xi
| {{#invoke:particles|link|Charmed Xi*0}}(2645)
| {{#invoke:particles|link|Down quark|Strange quark|Charm quark}}
| {{val|2646.38|+0.20|-0.23}}
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| 0
| | | 0
| ± 0.16){{e|-22}}}}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Charmed Xi+|+|Pion-|seen}}
|
style="height:40px"
|align="left"| double charmed xiâ
| {{#invoke:particles|link|Double charmed Xi*++}}
| {{#invoke:particles|link|Up quark|Charm quark|Charm quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| | 0
| | 0
| unknown
| unknown
|
style="height:40px"
|align="left"| double charmed xiâ
| {{#invoke:particles|link|Double charmed Xi*+}}
| {{#invoke:particles|link|Down quark|Charm quark|Charm quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| | 0
| | 0
| unknown
| unknown
|
style="height:40px"
|align="left"| bottom xiP.A. Zyla
et al. (2020):
Particle listings â {{#invoke:particles|nolink|Bottom Xi0}}(5945) | {{#invoke:particles|link|Bottom Xi*0}}
| {{#invoke:particles|link|Up quark|Strange quark|Bottom quark}}
| {{val|5952.3|0.6}}
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| 0
| | 0
| | ± 0.66){{e|-22}}}}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Bottom Xi-|+|Pion+|seen}}
|
style="height:40px"
|
style="height:40px"
|align="left"| double bottom xiâ
| {{#invoke:particles|link|Double Bottom Xi*0}}
| {{#invoke:particles|link|Up quark|Bottom quark|Bottom quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| 0
| 0
| 0
| | unknown
| unknown
|
style="height:40px"
|align="left"| double bottom xiâ
| {{#invoke:particles|link|Double Bottom Xi*-}}
| {{#invoke:particles|link|Down quark|Bottom quark|Bottom quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| | 0
| 0
| | unknown
| unknown
|
style="height:40px"
|align="left"| charmed bottom xiâ
| {{#invoke:particles|link|Charmed bottom Xi*+}}
| {{#invoke:particles|link|Up quark|Charm quark|Bottom quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| | 0
| | | unknown
| unknown
|
style="height:40px"
|align="left"| charmed bottom xiâ
| {{#invoke:particles|link|Charmed bottom Xi*0}}
| {{#invoke:particles|link|Down quark|Charm quark|Bottom quark}}
| unknown
| {{nowrap|(}})}}
| {{nowrap|(}}+)}}
| 0
| 0
| | | unknown
| unknown
|
style="height:40px"
|align="left"|
omegaJ. Beringer
et al. (2012):
Particle listings â {{#invoke:particles|nolink|Omega-}} | {{#invoke:particles|link|Omega-}}
| {{#invoke:particles|link|Strange quark|Strange quark|Strange quark}}
| {{val|1672.45|0.29}}
| 0
| }}+
| | | 0
| 0
| }}{{ref|Lifetime2|[h]}}
| {{#invoke:particles|link|Lambda0|+|Kaon-|or|br|Xi0|+|Pion-|or|br|Xi-|+|Pion0}}
|
style="height:40px"
|align="left"| charmed omegaJ. Beringer
et al. (2012):
Particle listings â {{#invoke:particles|nolink|Charmed Omega0}}(2770) | {{#invoke:particles|link|Charmed Omega*0}}(2770)
| {{#invoke:particles|link|Strange quark|Strange quark|Charm quark}}
| {{val|2765.9|2.0}}
| 0
| {{nowrap|(}}+)}}
| 0
| | | 0
| unknown
| {{#invoke:particles|link|Charmed Omega0|+|Gamma}}
|
style="height:40px"
|align="left"| bottom omegaâ
| {{#invoke:particles|link|Bottom Omega*-}}
| {{#invoke:particles|link|Strange quark|Strange quark|Bottom quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| | | 0
| | unknown
| unknown
|
style="height:40px"
|align="left"| double charmed omegaâ
| {{#invoke:particles|link|Double charmed Omega*+}}
| {{#invoke:particles|link|Strange quark|Charm quark|Charm quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| | | | 0
| unknown
| unknown
|
style="height:40px"
|align="left"| charmed bottom omegaâ
| {{#invoke:particles|link|Charmed bottom omega*0}}
| {{#invoke:particles|link|Strange quark|Charm quark|Bottom quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| 0
| | | | unknown
| unknown
|
style="height:40px"
|align="left"| double bottom omegaâ
| {{#invoke:particles|link|Double Bottom Omega*-}}
| {{#invoke:particles|link|Strange quark|Bottom quark|Bottom quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| | | 0
| | unknown
| unknown
|
style="height:40px"
|align="left"| triple charmed omegaâ
| {{#invoke:particles|link|Triple charmed Omega++}}
| {{#invoke:particles|link|Charm quark|Charm quark|Charm quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| | 0
| | 0
| unknown
| unknown
|
style="height:40px"
|align="left"| double charmed bottom omegaâ
| {{#invoke:particles|link|Double charmed bottom Omega*+}}
| {{#invoke:particles|link|Charm quark|Charm quark|Bottom quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| | 0
| | | unknown
| unknown
|
style="height:40px"
|align="left"| charmed double bottom omegaâ
| {{#invoke:particles|link|Charmed double bottom Omega*0}}
| {{#invoke:particles|link|Charm quark|Bottom quark|Bottom quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| 0
| 0
| | | unknown
| unknown
|
style="height:40px"
|align="left"| triple bottom omegaâ
| {{#invoke:particles|link|Triple Bottom Omega-}}
| {{#invoke:particles|link|Bottom quark|Bottom quark|Bottom quark}}
| unknown
| (0)
| {{nowrap|(}}+)}}
| | 0
| 0
| | unknown
| unknown
â {{note|Undiscovered2}} Particle has not yet been observed.[h] {{note|Lifetime2}} PDG reports the resonance width (Î). Here the conversion Ï = {{sfrac|ħ|Î}} is given instead. Baryon resonance particles
This table gives the name, quantum numbers (where known), and experimental status of baryons resonances confirmed by the PDG.JOURNAL, Baryon Summary Table, C. Patrignani et al. (Particle Data Group), Chin. Phys. C, 40, 100001, 2018,weblink 27 September 2018, Baryon resonance particles are excited baryon states with short half lives and higher masses. Despite significant research, the fundamental degrees of freedom behind baryon excitation spectra are still poorly understood.JOURNAL, Crede, Volker, Roberts, Winston, Progress Toward Understanding Baryon Resonances, Rep. Prog. Phys., 2013, 76, 7, 10.1088/0034-4885/76/7/076301, 23787948, 1302.7299, 2013RPPh...76g6301C, 076301, 24922824, The spin-parity J'P (when known) is given with each particle. For the strongly decaying particles, the J'P values are considered to be part of the names, as is the mass for all resonances.{| class="wikitable"|+ Baryon resonance particles|
! colspan="3" | Nucleons! colspan="3" | Πparticles! colspan="3" | Πparticles! colspan="3" | Σ particles! colspan="3" | Πand Ω particles! colspan="3" | Charmed particles! colspan="3" | Bottom particles
|
| 1 | | > | | 3 | | | | 1 | | > | | 1 | | | | 1 | | > | Î | BR=c}} | {{frac | 2}}+ | | Î | BR=b}} | {{frac | 2}}+ | *** |
|
| 1 | | > | | 3 | | | | 1 | | > | | 1 | | | | 1 | | > | | 1 | | *** | | 1 | | *** |
|
| 1 | | > | | 1 | | | | 3 | | > | | 1 | | | | 3 | | > | | 3 | | *** | | 3 | | *** |
|
| 3 | | > | | 3 | | | | 1 | | | | 3 | | | | | | | | * | | 1 | | *** |
|
| 1 | | > | | 1 | | * | | 1 | | > | | | * | | | | | 5 | | *** | Σ | BR=b}} | {{frac | 2}}+ | *** |
|
| 1 | | > | | 1 | | *** | | 3 | | > | | | ** | | 3 | | | | 3 | | *** | Î | BR=b}}, {{Physics particle | TR=â | | 1 | | *** |
|
| 5 | | > | | 5 | | | | 1 | | | | 3 | | * | | | | | | | | 1 | | *** |
|
| 5 | | > | | 1 | | | | 1 | | | | 1 | | * | | 5 | | | | 1 | | | | 3 | | *** |
|
| 3 | | | | 3 | | *** | | 1 | | | | 1 | | *** | | | | | 3 | | *** | | 3 | | *** |
|
| 1 | | > | | 5 | | *** | | 5 | | > | | 3 | | | | | > | | | * | Ω | BR=b}} | {{frac | 2}}+ | *** |
|
| 3 | | > | | 3 | | ** | | 5 | | > | | | ** | | | | | | | | | * |
|
| 5 | | | | 7 | | | | 3 | | > | | 3 | | * | | | | Î | BR=c}} | {{frac | 2}}+ | *** | | | * |
|
| 3 | | | | 5 | | ** | | | | | 1 | | *** | | | | Î | BR=c}} | {{frac | 2}}+ | *** | |
|
| 1 | | | | 1 | | * | | 7 | | | | 1 | | * | | 3 | | > | Î{{prime}} | BR=c}} | {{frac | 2}}+ | *** |
|
| 1 | | > | | 7 | | *** | | 3 | | | | 5 | | | | | | Î{{prime}} | BR=c}} | {{frac | 2}}+ | *** |
|
| 3 | | > | | 9 | | ** | | 7 | | > | | 3 | | * | | | | | 3 | | *** |
|
| 7 | | | | 5 | | * | | 5 | | | | 1 | | ** | | | | | 1 | | *** |
|
| 5 | | | | 7 | | * | | 3 | | | | 1 | | * | | Îc(2815) | {{frac | 2}}â | *** |
|
| 3 | | | | 9 | | ** | | 9 | | | | 5 | | | | | * |
|
| 5 | | | | 11 | | | | | | | 3 | | * | | | *** |
|
| 1 | | | | 13 | | ** | | Σ(1940) | {{frac | 2}}â | *** | | | *** |
|
| 3 | | | | 15 | | ** | | 1 | | * | | | *** |
|
| 7 | | > | | | 7 | | | | | * |
|
| 9 | | | | 5 | | * | | | |
|
| 9 | | | | 3 | | ** | Ω | BR=c}} | {{frac | 2}}+ | *** |
|
| 1 | | ** | | 7 | | * | | 3 | | *** |
|
| 5 | | ** | | | *** | | | *** |
|
| 11 | | *** | | | ** | | | *** |
|
| 13 | | ** | | | ** | | | *** |
|
| | | * | | | *** |
|
| | | *** |
|
| | |
|
Î | BR=cc}} | | * |
{| >| Existence is certain, and properties are at least fairly well explored. | |
| Existence ranges from fairly certain to certain, but further confirmation is desirable, and/or quantum numbers, branching fractions, etc. are not well determined. |
|
| Evidence of existence is only fair. |
|
| Evidence of existence is poor. |
See also
{{Clear}} References
{{Reflist|30em}} Bibliography
, R. Aaij
et al. (
LHCb, LHCb collaboration)
, 2015
, Observation of J/Ïp resonances consistent with pentaquark states in Î{{su, 0, b, âJ/ÏK{{su|p=â}}p decays
|arxiv=1507.03414
|doi=10.1103/PhysRevLett.115.072001
|pmid=26317714
|volume=115 |issue=7
|pages=072001
|journal=
Physical Review Letters |bibcode=2015PhRvL.115g2001A
|s2cid=119204136
}}
, J. Beringer
et al. (
Particle Data Group)
, 2012
, Review of Particle Physics
,
Physical Review D, 86, 1, 010001
, 2012PhRvD..86a0001B
, 10.1103/PhysRevD.86.010001
, free, 10481/34377
, free
,
, K. Nakamura
et al. (
Particle Data Group)
, 2010
, Review of Particle Physics
,
Journal of Physics G, 37, 7A, 075021
, 2010JPhG...37g5021N
, 10.1088/0954-3899/37/7A/075021
, free, 10481/34593
, free
,
, C. Amsler
et al. (
Particle Data Group)
, 2008
, Review of Particle Physics
,
Physics Letters B, 667, 1, 1â1340
, 2008PhLB..667....1A
, 10.1016/j.physletb.2008.07.018
,
weblink, 1854/LU-685594
, 227119789
, free
,
, V.M. Abazov
et al. (
DÃ experiment, DÃ Collaboration)
, 2008
, Observation of the doubly strange b baryon {{#invoke:particles, nolink, Bottom Omega-,
|url=http://www-d0.fnal.gov/Run2Physics/WWW/results/final/B/B08G/B08G.pdf
|id=Fermilab-Pub-08/335-E
}}
, K. Carter
, 2006
, The rise and fall of the pentaquark
,
weblink,
Symmetry Magazine,
Fermilab/
SLAC, 2008-05-27
,
weblink" title="web.archive.org/web/20070708143911
weblink">weblink
, 2007-07-08
, dead
,
, W.-M. Yao
et al. (
Particle Data Group)
, 2006
, Review of Particle Physics
,
Journal of Physics G, 33, 1
, 1â1232
, astro-ph/0601168
, 2006JPhG...33....1Y
, 10.1088/0954-3899/33/1/001
, free
,
,
, J.G. Körner, M. Krämer, D. Pirjol, amp, 1994
, Heavy Baryons
,
Progress in Particle and Nuclear Physics, 33, 787â868
, 10.1016/0146-6410(94)90053-1
, hep-ph/9406359
, 1994PrPNP..33..787K
, 118931787
, Further reading
,
, D.M. Manley
, 2005
, Status of baryon spectroscopy
, (Journal of Physics: Conference Series)
, 5, 1
, 230â237
, 10.1088/1742-6596/9/1/043
, 2005JPhCS...9..230M
, free
,
, S.S.M. Wong
, 1998
, Introductory Nuclear Physics
, 2nd
,
John Wiley & Sons, New York (NY)
, 978-0-471-23973-4
,
, R. Shankar
, 1994
, Principles of Quantum Mechanics
, 2nd
,
Plenum Press, New York (NY)
, 978-0-306-44790-7
,
, E. Wigner
, 1937
, On the Consequences of the Symmetry of the Nuclear Hamiltonian on the Spectroscopy of Nuclei
,
Physical Review, 51, 2, 106â119
, 10.1103/PhysRev.51.106
, 1937PhRv...51..106W
,
, M. Gell-Mann
, 1964
, A Schematic of Baryons and Mesons
,
Physics Letters, 8, 3, 214â215
, 10.1016/S0031-9163(64)92001-3
, 1964PhL.....8..214G
,
, W. Heisenberg
, 1932
, Ãber den Bau der Atomkerne I
,
Zeitschrift für Physik, 77, 1â2
, 1â11
, 10.1007/BF01342433
, 1932ZPhy...77....1H
, 186218053
, de
,
, W. Heisenberg
, 1932
, Ãber den Bau der Atomkerne II
,
Zeitschrift für Physik, 78, 156â164
, 10.1007/BF01337585, 1932ZPhy...78..156H
, 3â4, 186221789
, de
,
, W. Heisenberg
, 1932
, Ãber den Bau der Atomkerne III
,
Zeitschrift für Physik, 80, 587â596
, 10.1007/BF01335696, 1933ZPhy...80..587H
, 9â10, 126422047
, de
, External links
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